Climate Overview
The climate in Trincomalee Airport is hot. The average annual temperature is 28°C and approximately 1350mm of precipitation falls per year. November is the wettest month, receiving around 324mm of rainfall. Trincomalee Airport sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Trincomalee Airport sees moderate temperature variation throughout the year, ranging from 23°C to 35°C. The warmest month is July, when average highs reach 35°C and the mean temperature sits around 30°C. January is the coolest month, with minimum temperatures around 23°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
Trincomalee Airport is a fairly wet location, receiving approximately 1350mm of precipitation annually, which averages out to around 112mm per month. The wettest month is November, averaging 324mm of rainfall. October and December also tend to see above-average precipitation. The driest month is June, with just 27mm. That's 297mm less than November, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Trincomalee Airport is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 24km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in April, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 11km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 15km/h in winter, 15km/h in spring, 23km/h in summer, 17km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Trincomalee Airport, which began on March 20, 2026. Trincomalee Airport sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in July at around 35°C, while the coldest stretch bottoms out in January near 23°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 24 to 34°C. Precipitation is moderate at around 242mm for the season, averaging 81mm per month. Winds are moderate at around 15km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 26 to 35°C. Rainfall is relatively light, with around 141mm over the season and a monthly average of 47mm. Winds are moderate at around 23km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 34°C. Rainfall is heavy, totalling around 609mm across the season with a monthly average of 203mm. Winds are moderate at around 17km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 357mm across the season with a monthly average of 119mm. Winds are generally light, averaging 15km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Trincomalee Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
